Chains and heterogens:
PDB Chain Sequences:
>4rn2A (A:) meepeepadsgqslvpvyiyspeyvsmcdslakipkradmvhslieayalhkqmrivkpk vasmeematfhtdaylqhlqkvsqegdddhpdsieyglgydcpategifdyaaaiggati taaqclidgmckvainwsggwhhakkdeasgfcylndavlgilrlrrkferilyvdldlh hgdgvedafsftskvmtvslhkfspgffpgtgdvsdvglgkgryysvnvpiqdgiqdeky yqicesvlkevyqafnpkavvlqlgadtiagdpmcsfnmtpvgigkclkyilqwqlatli lggggynlantarcwtyltgvilgktlsseipdhefftaygpdyvleitpscrpdrneph riqqilnyikgnlkhvviegrgshhhhhh
>4rn2A (A:) vpvyiyspeyvsmcdslakipkradmvhslieayalhkqmrivkpkvasmeematfhtda ylqhlqkvsqsieygltegifdyaaaiggatitaaqclidgmckvainwsggwhhakkde asgfcylndavlgilrlrrkferilyvdldlhhgdgvedafsftskvmtvslhkfspgff pgtgdvsdvglgkgryysvnvpiqdgiqdekyyqicesvlkevyqafnpkavvlqlgadt iagdpmcsfnmtpvgigkclkyilqwqlatlilggggynlantarcwtyltgvilgktls seipdhefftaygpdyvleitpscrpdrnephriqqilnyikgnlkhvv
>4rn2B (B:) meepeepadsgqslvpvyiyspeyvsmcdslakipkradmvhslieayalhkqmrivkpk vasmeematfhtdaylqhlqkvsqegdddhpdsieyglgydcpategifdyaaaiggati taaqclidgmckvainwsggwhhakkdeasgfcylndavlgilrlrrkferilyvdldlh hgdgvedafsftskvmtvslhkfspgffpgtgdvsdvglgkgryysvnvpiqdgiqdeky yqicesvlkevyqafnpkavvlqlgadtiagdpmcsfnmtpvgigkclkyilqwqlatli lggggynlantarcwtyltgvilgktlsseipdhefftaygpdyvleitpscrpdrneph riqqilnyikgnlkhvviegrgshhhhhh
>4rn2B (B:) vpvyiyspeyvsmcdslakipkradmvhslieayalhkqmrivkpkvasmeematfhtda ylqhlqkvsqegsieyglgydcpategifdyaaaiggatitaaqclidgmckvainwsgg whhakkdeasgfcylndavlgilrlrrkferilyvdldlhhgdgvedafsftskvmtvsl hkfspgffpgtgdvsdvglgkgryysvnvpiqdgiqdekyyqicesvlkevyqafnpkav vlqlgadtiagdpmcsfnmtpvgigkclkyilqwqlatlilggggynlantarcwtyltg vilgktlsseipdhefftaygpdyvleitpscrpdrnephriqqilnyikgnlkhvv